SE9602017D0 - Method and apparatus for pulping sawdust - Google Patents
Method and apparatus for pulping sawdustInfo
- Publication number
- SE9602017D0 SE9602017D0 SE9602017A SE9602017A SE9602017D0 SE 9602017 D0 SE9602017 D0 SE 9602017D0 SE 9602017 A SE9602017 A SE 9602017A SE 9602017 A SE9602017 A SE 9602017A SE 9602017 D0 SE9602017 D0 SE 9602017D0
- Authority
- SE
- Sweden
- Prior art keywords
- sawdust
- retention vessel
- slurry
- flow
- cooking temperature
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/24—Continuous processes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/02—Pretreatment of the finely-divided materials before digesting with water or steam
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/26—Multistage processes
- D21C3/266—Multistage processes the same pulping agent being used in all stages
Landscapes
- Paper (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/520,941 US6325888B1 (en) | 1995-08-31 | 1995-08-31 | Method for pulping sawdust |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9602017D0 true SE9602017D0 (sv) | 1996-05-28 |
SE9602017L SE9602017L (sv) | 1997-03-01 |
SE524260C2 SE524260C2 (sv) | 2004-07-20 |
Family
ID=24074673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9602017A SE524260C2 (sv) | 1995-08-31 | 1996-05-28 | Förfarande och apparat för massaframställning från sågspån |
Country Status (4)
Country | Link |
---|---|
US (2) | US6325888B1 (sv) |
CA (1) | CA2174875C (sv) |
FI (1) | FI119553B (sv) |
SE (1) | SE524260C2 (sv) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE517674E8 (sv) * | 2001-05-02 | 2015-10-20 | Metso Paper Sweden Ab | Förfarande för tvättvätsketillförsel till kokningsprocess för cellulosamassa |
CA2383279A1 (fr) * | 2002-05-06 | 2003-11-06 | Sylvain Cloutier | Reacteur |
SE519555C2 (sv) * | 2002-05-21 | 2003-03-11 | Kvaerner Pulping Tech | Metod för kontinuerlig kokning av vedrådvara till cellulosamassa |
AU2003281334A1 (en) * | 2002-07-02 | 2004-01-23 | Andritz, Inc. | Solvent pulping of biomass |
US7309401B2 (en) | 2003-05-12 | 2007-12-18 | Andritz Inc. | Top separator for gas phase and hydraulic phase continuous digesters and method for converting digester |
US7771565B2 (en) * | 2006-02-21 | 2010-08-10 | Packaging Corporation Of America | Method of pre-treating woodchips prior to mechanical pulping |
US8734610B2 (en) * | 2007-05-23 | 2014-05-27 | Andritz Inc. | Two vessel reactor system and method for hydrolysis and digestion of wood chips with chemical enhanced wash method |
JP5215706B2 (ja) * | 2007-08-01 | 2013-06-19 | 三井造船株式会社 | 固気2相物質の押し込み装置 |
WO2010102063A2 (en) * | 2009-03-03 | 2010-09-10 | Poet Research, Inc. | System for fermentation of biomass for the production of ethanol |
US8956505B2 (en) * | 2009-06-11 | 2015-02-17 | Andritz Technology And Asset Management Gmbh | Compact feed system and method for comminuted cellulosic material |
US8628623B2 (en) * | 2009-12-21 | 2014-01-14 | Andritz Technology And Asset Management Gmbh | Method and process for dry discharge in a pressurized pretreatment reactor |
US9034620B2 (en) | 2010-03-19 | 2015-05-19 | Poet Research, Inc. | System for the treatment of biomass to facilitate the production of ethanol |
EP2547778B1 (en) | 2010-03-19 | 2019-09-04 | POET Research, Inc. | System for the treatment of biomass |
EP2665823A1 (en) | 2011-01-18 | 2013-11-27 | POET Research, Inc. | Systems and methods for hydrolysis of biomass |
EP2729585A4 (en) | 2011-07-07 | 2015-03-18 | Poet Res Inc | SYSTEMS AND METHOD FOR ACID RECYCLING |
WO2017112834A1 (en) * | 2015-12-21 | 2017-06-29 | Andritz Inc. | Method and apparatus for pumping sawdust feed in a sawdust pulping system |
CN107130456B (zh) * | 2016-02-29 | 2021-05-07 | 山东泉林纸业有限责任公司 | 一种禾草类原料的连续蒸煮方法及装置 |
FI127474B (sv) * | 2017-01-20 | 2018-06-29 | Valmet Technologies Oy | Förfarande och system för värmeåtervinning med anknytning till funktionen av en smältlösare vid en sodapanna |
US11655588B2 (en) | 2017-05-24 | 2023-05-23 | Valmet Ab | System and chip chute for feeding comminuted cellulosic material |
CN110699996B (zh) * | 2018-07-09 | 2021-08-06 | 吉林中粮生化有限公司 | 用于带压容器的排料装置以及蒸汽蒸煮系统 |
CN113308923B (zh) * | 2021-05-28 | 2022-06-10 | 北京三联虹普新合纤技术服务股份有限公司 | 一种用于制备Lyocell纤维的浆粕均化与调质系统 |
AT527339A1 (de) | 2023-07-11 | 2025-01-15 | Mondi Ag | Verfahren zur Herstellung von Papier aus Abfallholz sowie daraus hergestelltes Papier |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3475271A (en) | 1966-02-07 | 1969-10-28 | Kamyr Ab | Cellulose digester with washing apparatus |
US3294623A (en) * | 1966-02-23 | 1966-12-27 | Int Paper Co | Continuous digestion and purification with recirculation of liquor |
EP0157279B1 (en) | 1984-04-02 | 1988-08-10 | Kamyr, Inc. | Sawdust pumping, and processing |
US5266159A (en) | 1991-10-25 | 1993-11-30 | Kamyr, Inc. | Mass flow measurement, preferably for controlling chip feed to a digester |
US5444884A (en) | 1994-07-15 | 1995-08-29 | Kamyr, Inc. | Controlling screen backflush and wash distribution in a pressure diffuser |
-
1995
- 1995-08-31 US US08/520,941 patent/US6325888B1/en not_active Expired - Fee Related
-
1996
- 1996-04-24 CA CA002174875A patent/CA2174875C/en not_active Expired - Fee Related
- 1996-05-28 SE SE9602017A patent/SE524260C2/sv not_active IP Right Cessation
- 1996-08-29 FI FI963361A patent/FI119553B/sv active
-
2001
- 2001-10-19 US US09/981,837 patent/US6379504B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2174875A1 (en) | 1997-03-01 |
SE524260C2 (sv) | 2004-07-20 |
US6379504B1 (en) | 2002-04-30 |
FI963361A (sv) | 1997-03-01 |
CA2174875C (en) | 2007-01-23 |
US20020026990A1 (en) | 2002-03-07 |
FI963361A0 (sv) | 1996-08-29 |
SE9602017L (sv) | 1997-03-01 |
US6325888B1 (en) | 2001-12-04 |
FI119553B (sv) | 2008-12-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |